초록 ▼

An apparatus for applying joint compound is externally powered, preferably using compressed air. The preferred apparatus has a hollow tubular storage body that is connected to a supply of compressed air, and a movable plunger positioned within the hollow tubular storage body. The plunger has a pair

An apparatus for applying joint compound is externally powered, preferably using compressed air. The preferred apparatus has a hollow tubular storage body that is connected to a supply of compressed air, and a movable plunger positioned within the hollow tubular storage body. The plunger has a pair of rubber seals that contact the inner wall of the storage body. A supply of joint compound is inserted into the storage body on the side of the plunger opposite the side of the plunger that can be exposed to pressurized air. Pressurized air can be supplied by the user against the plunger to push the supply of joint compound out of the storage body through a mud supply head. An applicator tip is connected to the mud supply head and can be connected to either a flat joint attachment or a corner joint attachment. Alternatively, other attachments can be used such as a texture gun attachment, a fireproofing attachment, or a water cleaning attachment.

대표청구항 ▼

[ We claim:] [1.] An apparatus for supplying joint compound to be applied over a joint between sections of wallboard, the apparatus comprising:a hollow storage body for holding a supply of joint compound, the hollow storage body extending along a longitudinal axis and having a top end and a bottom e

[ We claim:] [1.] An apparatus for supplying joint compound to be applied over a joint between sections of wallboard, the apparatus comprising:a hollow storage body for holding a supply of joint compound, the hollow storage body extending along a longitudinal axis and having a top end and a bottom end;a power supply head connected to the bottom end of the hollow storage body;a mud supply head connected to the top end of the hollow storage body, the mud supply head having a joint compound passageway;a movable plunger positioned within the interior of the hollow storage body between the power supply head and the supply of joint compound;an externally powered driving source in communication with the power supply head that provides a driving force to the movable plunger, the driving force being selectively applied to push the plunger toward the mud supply head so that the plunger pushes the supply of joint compound out of the hollow storage body through the joint compound passageway in the mud supply head; andan applicator tip removably connected to the mud supply head, wherein the applicator tip comprises:an applicator stem;a mounting ball integral with the applicator stem; andan applicator tip passageway passing through the applicator stem and the mounting ball, the applicator tip passageway receiving joint compound passing through the joint compound passageway in the mud supply head and outputting joint compound through the mounting ball.